kaletacms

<p><picture><source media="(prefers-color-scheme: dark)" srcset="image/kaleta-logo-tmavy.svg"><img src="image/kaleta-logo.svg" alt="Kaleta" height="48"></picture></p> # Kaleta **An open-source CMS for business websites** – services, testimonials, team, careers, contact and news. A visual page builder whose output reads like hand-written HTML, an AI assistant, Claude over MCP, and a WordPress importer. [Česky](README.cs.md)  > Project website: [kaletacms.com](https://kaletacms.com) · guide: [kaletacms.com/guide](https://kaletacms.com/guide) · latest version: [GitHub Releases](https://github.com/phprs-cms/kaletacms/releases/latest) · what comes next: [roadmap](docs/ROADMAP.md) · [release policy](docs/RELEASE-POLICY.md) ## Features - **Page builder** – the canvas is the real page. Drag elements and ready-made sections into place, style them separately for desktop, tablet, mobile and hover. Drafts save continuously and go live only when you publish; older versions can be restored. - **Library of 40 ready-made sections** (heroes, services, pricing, testimonials, team, gallery, contact with a form…) and **three starter sites** at installation. Texts follow the page language. - **Design system** – one-click styles, colours with a readability (WCAG) check, dark mode, fonts, fluid sizes and spacing – all tokens, so changing a colour restyles the whole site. - **Site parts** – header, footer and wrappers for the news item, news list and 404 page in the builder, including variants for selected pages (a landing page without navigation). - **Pop-ups** – windows, slide-in panels and bars built in the builder, with triggers (time, scrolling, exit intent, idle time, page count), rules by page, language, period, device and campaign, and cookie-free views and conversions. - **Components** – reusable blocks with properties; editing a component updates it everywhere. - **Collections** – custom content types (testimonials, team, products, branches…) with their own fields, listed in the builder with `{{field}}` tags, filters, sorting and pagination, and item pages with a builder template. - **Forms and enquiries** – an enquiry form without CAPTCHA or cookies, enquiries in the admin, email notifications, CSV export and automatic deletion of personal data. - **Newsletter** – double opt-in sign-up; send your latest news in an e-mail styled by the design system (through SMTP), or pass confirmed subscribers to Brevo, MailerLite, Mailchimp, Ecomail, SmartEmailing or any service via a webhook. - **Company details** – address, company ID, opening hours and map once in Settings; the site shows them and search engines get LocalBusiness structured data. - **AI** – the assistant drafts a new section from a description, rewrites element text, suggests headlines, SEO descriptions, proofreading and translation (Claude, OpenAI, Google Gemini or Mistral). Claude can also build the site over **MCP**: it turns HTML into builder content and edits site parts, collections and the design – always as a draft to approve. - **News** (blog), sites in around forty languages, SEO and llms.txt, cookie-free analytics, redirects, backups and signed updates, **WordPress import** (straight into the builder, too). ## Principles - **No technical debt:** plain PHP 8.4+, no framework, Composer or build step; no third-party plugins. - **Clean output:** one builder element = one HTML tag, CSS only for what the page uses, in cascade layers (`@layer`); JavaScript only where it is really needed. Tests enforce it. - **Web 2026:** fluid type and spacing, container queries, OKLCH colours (`color-mix`), the Popover API, view transitions. - **AI as a first-class user:** whatever works in the editor works over MCP – same schema, validation and permissions. - **Privacy and accessibility by default:** no third-party scripts or fonts, colour contrast checks. - **FTP installation**, signed updates. ## Installation 1. Download `kaleta-X.Y.Z.zip` from [Releases](https://github.com/phprs-cms/kaletacms/releases/latest) and upload its contents (including the hidden `.htaccess` files) to hosting with PHP 8.4+ and MySQL 8 / MariaDB 10.6+. 2. Create an empty database. 3. Open `https://your-site.com/install.php`, fill in the form and choose a starter site. Later versions are downloaded and installed by the site itself (Settings → Backups and updates); packages are signed by the publisher. Nginx does not read `.htaccess` – use the example in `system/nginx.example.conf`. The user guide is in [docs/guide.md](docs/guide.md). ## Development ```bash php -S localhost:8080 system/dev-router.php ``` Tests: `php tools/unit-tests.php` (unit, no database) and `tools/test.sh` (clean install plus a walk through the site, admin, builder and MCP; needs MySQL; `WEB=remeslo tools/test.sh` tests another starter site). `tools/test-lighthouse.sh` holds every starter site to the output budget; `php tools/contracts.php` shows changes of the public contracts (MCP tools, design tokens, builder elements); static analysis is PHPStan with `phpstan.neon.dist`. How to contribute is in [`CONTRIBUTING.md`](CONTRIBUTING.md); architecture notes are in [`CLAUDE.md`](CLAUDE.md) (Czech). ## Licence GNU GPL version 2 or later. The licence text is in [`LICENSE`](LICENSE).